MacFarlane has served as an executive producer during the show's entire history, and also functions as a creative consultant. The first executive producers were David Zuckerman ,  Lolee Aries , David Pritchard, and Mike Wolf.  Family Guy has had many executive producers in its history, including Daniel Palladino , Kara Vallow , and Danny Smith . David A. Goodman joined the show as a co-executive producer in season three, and eventually became an executive producer.  Alex Borstein , who voices Lois , worked as an executive and supervising producer for the fourth and fifth seasons. 
Peter is shown generally to be a complete idiot, such as being dumb enough in " Stew-Roids " to think that there can be a World War 5 before World Wars 3 and 4 because it would be so intense that it would "Skip right over the other two.". In " Petarded ", after winning a game of Trivial Pursuit which Lois rigged with questions from the Pre-school edition so he could win, he thinks that he is a genius, and at Brian's prompting he takes an exam to apply for the MacArthur Genius Grant, which he fails so awfully that he is found to be mentally retarded. In " Quagmire's Baby ", Peter thinks that babies can be aborted whether they're born or not.